Table 4.
Prevalence rates of Osteoarthritis (OA) per site, per country and per definition
| 65-74 years old | |||||
|---|---|---|---|---|---|
| Germany | Italy | Netherlands | Spain | UK | |
| Definitions based on self-report | |||||
| Knee OA | - | 19.2 (17.1-21.3) n = 1412 |
23.6 (20.5-26.7) n = 706 |
- | - |
| Hip OA | - | 14.1 (12.3-15.9) n = 1412 |
17.4 (14.6-20.2) n = 706 |
- | - |
| Hand OA | - | 15.7 (13.8-17.6) n = 1411 |
19.1 (16.2-22.0) n = 706 |
- | - |
| Non-specific | - | 32.3 (29.9-34.7) n = 1411 |
41.4 (37.8-45.0) n = 735 |
56.2 (50.8-61.6) n = 326 |
- |
| Definitions based on clinical judgement | |||||
| Knee OA | - | 36.7 (34.2-39.2) n = 1434 |
- | - | 18.6 (16.0-21.2) n = 878 |
| Hip OA | - | 22.9 (20.7-25.1) n = 1434 |
- | - | - |
| Hand OA | - | 33.1 (30.7-35.5) n = 1433 |
- | - | 23.1 (21.1-25.1) n = 1678 |
| Non-specific | 44.7 (41.4-48.1) N = 830 |
54.6 (52.0-57.2) n = 1433 |
23.7 (20.0-27.4) n = 510 |
43.6 (38.2-49.0) n = 328 |
29.3 (27.1-31.4) n = 1688 |
| Definitions based on radiographic information | |||||
| Knee OA | - | 8.6 (6.4-10.8) n = 647 |
- | - | 15.1 (11.4-18.8) n = 360 |
| Hip OA | - | 3.5 (2.1-4.9) n = 641 |
- | - | - |
| Hand OA | - | 31.0 (26.3-35.7) n = 375 |
- | - | 28.1 (19.3-36.9) n = 100 |
| 75+ years old | |||||
| Germany | Italy | Netherlands | Spain | UK | |
| Definitions based on self-report | |||||
| Knee OA | - | 24.3 (22.1-26.5) n = 1436 |
31.4 (28.0-34.8) n = 696 |
- | - |
| Hip OA | - | 18.9 (16.9-20.9) n = 1436 |
19.1 (16.2-22.0) n = 696 |
- | - |
| Hand OA | - | 21.9 (19.8-24.0) n = 1436 |
25.9 (22.6-29.2) n = 697 |
- | - |
| Non-specific | - | 40.4 (37.9-42.9) n = 1433 |
53.5 (49.9-57.1) n = 758 |
65.5 (61.2-69.8) n = 460 |
- |
| Definitions based on clinical judgement | |||||
| Knee OA | - | 50.8 (48.4-53.2) n = 1672 |
- | - | - |
| Hip OA | - | 36.1 (33.8-38.4) n = 1672 |
- | - | - |
| Hand OA | - | 44.1 (41.7-46.5) n = 1674 |
- | - | - |
| Non-specific | 47.9 (44.1-51.7) n = 670 |
69.6 (67.4-71.8) n = 1672 |
40.5 (36.4-44.6) n = 549 |
56.6 (52.1-61.1) n = 468 |
- |
| Definitions based on radiographic information | |||||
| Knee OA | - | 17.7 (14.7-20.7) n = 610 |
- | - | - |
| Hip OA | - | 7.4 (5.3-9.5) n = 584 |
- | - | - |
| Hand OA | - | 55.0 (49.8-60.2) n = 358 |
- | - | - |
Presented are the prevalence rates and 95% confidence intervals (95%CI) for site-specific and non-specific OA per country and per definition used. 95%CI was calculated as: p ± 1.96 * SE in which SE = √ (p (1 - p)/n) and p = proportion. Results were weighted for age and sex in the European Standard Population as of January 1, 2001, and stratified for age.